K 2500 Truck 4WD V8-379 6.2L DSL (1988)
Glow Plug Relay: Locations
Top RH Rear Of Engine
Top RH side of engine, above valve cover
GMC Workshop Service and Repair Manuals
Relays and Modules - Glow Plug System >
< Glow Plug Inhibit Switch <--> [Glow Plug Control Switch]|Locations
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